| Idea. 2157252 · TMA1192969 · design | Sichuan Weiyi Beverage and Food Co. Ltd. | 29 Meat30 Coffee31 Fresh+1 | Registered | 2023 |
| IDEA 1624383 · TMA915746 | Legrand AV Inc. | 12 Vehicles16 Paper | Registered | 2015 |
| IDEA 1351372 · TMA727166 | IDEAfit, Inc. | 9 Electronics16 Paper25 Clothing+1 | Registered | 2008 |
| IDEA 0742244 · TMA459864 | CaseWare International Inc. | 9 Electronics | Registered | 1996 |
| IDEA 0601442 · TMA381441 · design | IDEAfit, Inc. | 16 Paper | Registered | 1991 |
| IDÉA 0916309 | an individual | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2005 |
| IDEA 0901632 | IDEA CORPORATION | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1983 |
| D-IDEA 1426764 · TMA784096 | Owner not shown | 35 Advertising39 Transport41 Education+1 | Registered | 2010 |
| I IDEA 0893777 · TMA583040 · design | IDEAfit, Inc. | 9 Electronics16 Paper25 Clothing+1 | Registered | 2003 |
| C IDEA 2305544 · design | Owner not listed | 9 Electronics | Pending | 2023 |
| NO IDEA 2178780 · TMA1229415 · design | 9464-8227 Québec inc. | 42 Science | Registered | 2024 |
| IDEA_LAB 1723052 · TMA1017957 · design | ideaLAB Innovation Corp. | 9 Electronics20 Furniture35 Advertising+4 | Registered | 2019 |
| IDEA NXT 1272003 · TMA681053 · design | an individual | 9 Electronics38 Telecommunications42 Science | Registered | 2007 |
| BIG IDEA 1008045 · TMA610635 | Big Idea Entertainment, LLC. | 9 Electronics16 Paper25 Clothing+1 | Registered | 2004 |
| DRY IDEA 0801579 · TMA478446 | Thriving Brands LLC | 3 Cosmetics | Registered | 1997 |
| IDEA LAW 0777441 · TMA456084 | an individual | 45 Legal | Registered | 1996 |
| IDEA LAB 2339337 | an individual | 41 Education | Pending | 2024 |
| BOTH IDEA 2263699 · TMA1283308 · design | Shandong Boshiai Stationery Co. Ltd. | 16 Paper28 Toys | Registered | 2025 |
| IDEA CASA 2108770 · TMA1189596 | 1269960 B.C. LTD. | 21 Housewares | Registered | 2023 |
| IDEA SCAN 1569555 · TMA914558 | Eureka!! Institute, Inc. | 35 Advertising | Registered | 2015 |
| IDEA NOVA 0841317 · TMA519685 | BOCHITEX INTERNATIONAL IMPORTATIONS INC. | 9 Electronics18 Leather25 Clothing+1 | Registered | 1999 |
| GOOD IDEA!! 0906649 · design | WYCLIFFE COLLEGE | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1994 |
| IDEA TITAN 1832689 · TMA1059497 | Affinity Express, Inc. | 42 Science | Registered | 2019 |
| IDEA MAKER 1682402 · TMA974341 | The Innographer Ltd. | 9 Electronics28 Toys41 Education | Registered | 2017 |
| CLEAN IDEA 1374645 · TMA734711 | MAPLEWOOD SALES & BROKERAGE INC. | 3 Cosmetics10 Medical21 Housewares | Registered | 2009 |